To see how fast Mac Pro Clovertown is, check this Quicktime movie of Cinema 4D 10.1 rendering a slightly complex scene (scene is a demo included in Cinema 4D package);
cinemarendering.mov (2 MB)
In menu extras on the top-right of screen, you’ll see 8 different percentages and you can see that Cinema 4D took full advantage of all 8 cores.
I’m really loving the speed improvement but Photoshop CS3 doesn’t seem to be truly taking advantage of all cores so the speed improvement isn’t as dramatic as Cinema 4D rendering but it’s still pretty acceptable to me. I just need to upgrade from 2 GB of RAM to 3 or 4 GB to make Photoshop really happy.
“With great power comes great RAM requirement.”